Type-writing machine.



J. PURDY.

' TYPE WRITING MACHINE.

APPLICATION 211.21) Emma, 1909.

2 BHBETS-SHEET 1.

Hal.

\A/ITNEEEIES- INVENTEIR:

k297i Q QM w-hs ATTORNEY Patented May 7, 1912.

J. PURDY. T YPE WRITING MACHINE. APPLICATION FILED FEB.8, 1909.

1,025,644. Patented May 7, 1912.

2 SHEETSSHEET 2.

FIG-5.

\A/rmcsszs I NVENTEIR= 2% ha? y 75% 1-115 ATTURNE Y porting posts or brackets for the paper car- UNITED sTArns nTENT oFmoE.

JOHN PURDY, OF NEW YORK, N. Y., ASSIG-NOR TO THE MONARCH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

' TYPE-WRITING MACHINE.

Specification of Letters Patent.

and for feeding the same therewith.

To this end my invention consists in the various features of construction and combinations and arrangements of parts, all as more fully described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a vertical cross-section, on an enlarged scale, of the carriage and upper portion of the frame-work of a Monarch typewriting machine embodying my invention. Fig. 2 is a similar View with some of the parts omitted and showing certain of the parts illustrated in- Fig. 1 in diflerent positions. Fig. 3 is a bottom plan View of the carriage, detached.

In the various views the same parts will be found designated by the same numerals of reference.

1 is the top plate of the machine, 2, supriage 3, the back bar 4 of which is constructed to cooperate with rollers 5 which also 00- .operate with grooved rails 6 mounted on said brackets or supports 2. At the ends of the back her are side or "end bars 7, 7, which support the platen 8 and platen shaft or rod 9 as usual. are'mounted on a shaft 11' whose ends are supported in depending hanger arms 12 piv- 'otally mounted-at 13in lugs or supports 14 prOjecting'forwardlyI from the back bar of the carriage. These arms are provided with springs 15 which operate to force the feed rolls 10 toward and against the platen. the deflector or apron 16 being cut away at 17 for passage therethrough of the roller sections 10. The deflector 1(' is pivotally mounted upon a rod 18 secured at its ends to the side bars of the carriage frame and Themain, rear feedrollers 10 Patented Illa) 7. 1912.

Application filed February 8,. 1909. 'Serial No. 476,592.

springs 19 tend to keep-said deflector-against the platen. These springs are shown herein as mounted upon arms 20 pivoted at 21 in the lugs 14. Said arms 20 support, at their forward free ends a shaft 22 which carries a set of pressure rollers 23. ,The deflector 16 is cut away at 24 so that; the 'rollers 23 may contact with the platen. The arms 20 and rollers 23 are pressed "toward the platen by springs. 25 in the customary manner.

26 designates the usual front platen scale which is pivotally jnounted at 27 on the'forward ends of arms 28 secured by screws 29 to forwardly projecting lugs 30 on the back bar of the carriage. These arms 28 are provided with flat 'ings 31 whose free ends bear upon low cut portions 32 of the platen scale an ereby force the upper edge of said scale against the platen.

33 designates the usual line finder and pressure device which is pivotally mounted at 34 and by a spring 35 pressed against the front face of the platen. The lower end of the pressure device 33 is curved outwardly as at 36 and is adapted to be acted upon by a vertically movable slide 37, whose func tion is to increase or diminish the pressure of the upper end of the device 33 against the platen, as may be desired. When the slide is down the pressure is that resulting from the spring 35 alone, but when the slide is pressed up the pressure is increased b camming action of the slide on the end 36 of the pressure device.

The parts thus far described are all in common use on the said Monarch machine and therefore need no further detail description.

The parts now to be described constitute the new features of the construction.

'38, 38 aretwo stifl curved fingers pivotally mounted at their rear ends upon the rod 18. These fingers are held in position the ower lengthwise of said rod by collars 39. The deflector is cut away or slotted at 40 for the accommodation of the fingers 38 and so that they may press against the platen or the card thereupon. These fingers 38 are on the under side of the platen and preferably terminate just in rear of the shaft 22. Means are provided for forcing the fingers 38 firmly against the cards, said means consisting in the present instance of cams or crank arms 41, pinned or otherwise secured to a rock shaft 42, extending lengthwise of and under the platen and mounted in depending brackets s3 fastened on the under side of the end bars 7, 7. The rock shaft 42 is adapted to be rocked by means of a lever or arm -14 secured the: ctO at one end. Normally this arm or lever rests against the hub 45 of one of 'the platen rotating handknobs or wheels 46, and when it is in this position the cams 41 are out of use and 'the card pressing or clamping fingers 38 are ineffectual to operate on the cards. In the use of this construction, the card is fed into the machine as usual, at the point at, between the deflector and the platen and between the feed rollers 10 and the platen, and for this purpose the feed rollers may be cast off as usual, though this is not necessary. When the card has been thus part-way introduced, the lever 44 is thrown rearwardly against a stop pin 47 and the cams, eccentrics o'r crank arms 41 are caused to rise and lift the pressure fingersv 38 and force them hard against theotird. When the lever is moved back against its stop 4?,the cams will be in the position shown at Fig. 2 and they will be locked thereat by reason of their position in alinement with the platen shaft 9 and the rock shaft 42. \Vhcn the parts i are in these positions the card may be fed forwardly to the printing point, either by the hand knobs or line feeding mechanism, the supplemental pressure fingers 38 \assisting by their extra pressure the feed move ment of the card. These fingers 38 also cause the card to conform accurately to the surface of the cylinder .or platen and hence the type impressions are much better than otherwise would be the case. it has been found in practice that certain stiff or heavy cards that cannot be properly shaped to the platen and fed around therewith with the ordinary feeding devices may be made to conform properly to the surface of the platen and to feed accurately and uniformly with the platen when the extra or auxiliary pressure lingers 38 are employed.

Itwil-l be observed from F 2 that the shaft l2is shown in two positions, one in cast; oll' ihc rod dotted lines and one' in full lines. The dotted lines represent the normal position ofthc shaft and the full lines the position the shaft assumes when the cams are pressing against the fingers 38. The shaft is made purposely thus to bend or lien downwardly so that it may, during the locking of the fingers 38 in working position, simultaneously carry off the feed rolls 23 from contact with the platen, these .rolls not being nccdcd when the fingers 38 are in use. in ordcr that the feed rolls may be thus .22 preferably passes through loops or brackets 1-8 on the arms 20 which into service aud the front feed rolls thrown out of working positlon so that they carry the feed rolls 23. When the rolls 23 move away from the platen the deflector drops or moves away also, so that there is no danger of the card being caught in the openings in the deflector.

The devices 38 for conforming or shaping the card to the cylinder and causing it to feed therewith are arranged beneath the cylinder and between the front and back feed rollers and the surfaces of the devices 38 are smooth so that the card may be dragged thereover as the platen is rotated,

the extra pressure of the card against the surface of the cylinder not being great enough to hold the cylinder against turning. By reason of mounting the shaft 4-2 flexibly the devices 38 may yield slightly when a thick card passes over'the cammingup devices.

When the leading portion of the card has been fed pastthe free ends of the fingers 38 it is engaged by the spring pressed platen scale and by the front pressure device 33, so that at times both the devices 38 and 33 are assisting in the feed of the card. \Vhen the card has entirely left the devices 38, the device 33 will complete the feed. If desired the usual front paper fingers and small rolls (not shown) may be employed in some cases.

The devices orconforlnators 38 when not in use hang slightly below the upper surface of the deflector. 1 i

It will be seen from the foregoing that the machine is adapted for ordinary correspondence work with paper as well as for card work; When the machine is used for correspondence work the lingers 38 have no pressure against the pape and the ordinary feeding devices are left free to co-act with the platen to feed the paper. while on the other hand when cards are to be written upon the'prcssure fingcrs 38 are briiught 22 are may not in any wise interfere with the feeding of the cards by catching their leading edges.

Various changes may-be made without de parting from my invention.

What I claim new and desire to secure by Letters Patent. is:

1. In a t \pcw1'iting machine. the combination with a cylindrical platen, of acard pressure device on the under si de of the platen and normally inert. and means for pressing said device forcibly against the platen for the card thereon and causing the card to fecd with the platen when the latter is rotated.

2. In a typewriting machine, the combination with a cylindrical platen, of a card pressure device arranged on the under side thereof and below the writing line and curved to conform to the surface of said platen, and independent means for at will forcibly pressing said 'device against the platen or against the card thereon.

3. In a typewriting machine, the combination with a cylindrical platen, of a pivotally mounted card conformator arranged on the under side of the platen and normally inert, and means for forcibly pressing the same against the platen or the card thereon and causing the card to feed with the platen when the latter is rotated.

4. In a typewriting machine, the combination with a cylindrical platen, of a card conformator mounted at one end at the rear side of the platen and extending forwardly under the platen and terminating at the lower front portion thereof, and means for pressing said conformator against the platen or against the card thereon and cansing the card to feed with the platen when the latter is rotated.

5. In a typewriting machine, the combination with a cylindrical platen, of a pivoted card conforniator arranged on the under side of the platen and below the writing line, and independent hand operated means for pressing said conformator against the platen or the card thereon and causing the card to feed with the platen when the latter is rotated.

6. In a typewriting machine, the combination with a cylindrical platen, of a card conformator arranged on the under side of the platen, a rock shaft, and a cam on said rock shaft for forcing the conformator against the platen or the card thereon.

7. In a typewriting machine, the combination with a cylindrical platen, of a pair of pivotally mounted pressure devices arranged on the under side of the laten and below the writing line and con orming to othe surface'thereof, and independent means for at will forcibly pressing said devices against the platen or the card thereon.

8. In a typewriting machine, the combination with a cylindrical platen, of a deflector on the under side thereof having slots or openings, a card conformator adapted to play in said openings, and means for press ing said conformator against the platen and the card thereon.

9. In a typewriting machine, the combination with a cylindrical platen, a deflector ,on the underside thereof having slots or openings, a pair of pivoted pressure devices adapted to said slots or openings and norinall'y extending below the same, and means for pressing said pressure devices up through said slots or "openings and against the platen or the card thereon.

10. In a typewriting'machine, the combinationwitli a cylindrical platen, a rear pressure roll, and a deflector, of a card confor-. mater arranged on the. under side of. the

platen, and independent means for at will causing it to press forcibly against the platen or against the card thereon.

11. In a typwriting machine, the combination with a cylindrical platen, of a rear feed roll, a pivotally mounted deflector, and a pivotally mounted card conformator, both said deflector and said eonformator being arranged on the under side of the platen and curved in accordance with the surface of the platen.

12. In a typewriting machine, the combination with a cylindrical platen, of a rear pressure roll, a deflect-or, a rod upon which said deflector is pivotally mounted, a card conformator also pivotally mounted upon said rod, said deflector and card conformator being arranged on the under side of the platen, and means for pressing the card conformator against the platen or against the card thereon.

13. In a typewriting machine, the combination with a cylindrical platen, of a rear pressure roll, a front pressure roll, a card conformatoron the under side of the platen, and means for pressing said conformator against the platen and causing the front pressure roll simultaneously to move away from the platen.

14:. In a typewrit-ing machine, the combination with a cylindrical platen, a rear pressure roll, a front pressure roll, and a deflector, of a card conformator on the under side ofthe platen, cams adapted to press said conformator against the platen, and a yielding shaft on which said cams are mount-ed, said yielding shaft being operatively connected to the front pressure roll, whereby when the conformator is pressed upwardly the front pressure roll is moved away'from the platen.

15. In a typewriting machine, the combinationiwlth a cylindrical platen, of a rear pressureiroll, a front pressure roll, a card co nformator on the underside of the platen arranged between said pressure rolls and below" the writing line, and means for forcing said conformator against the'.platen.

16. In a typewriting machine, .the combination with, a carriage, a cylindrical platen, of a card conformator pivotally mounted on the rear side of the platen and extending under the same, a front pressure roll mounted on pivoted arms, a yielding rock shaft mounted in the side frames of the carriage and passing through connecting devices on said pressure roll arms, and cams on said rock shaft whereby said cams force the conformator against the platen and the yielding shaft forces the pressure roll away from the platen.

17. In a typewriting machine, the combinationswith a cylindrical platen, of a rear pressure .,,roll,; a front pressure roll, a paper scale, a front pressure device, a deflector on the under side of the platen having slots 01' openings, a pair of curved pressure devices on the underside of the platen adapted to play in said slots 01' openings in the de- Hector, and a hand actuated rock shaft arranged under the platen and provided with cams for forcing said curved pressure devices against the platen.

18. In a typewriting machine, the com bination with a cylindrical platen, of a card confcrmator on the under side thereof, a rock shaft, and came on said rock shaft for forcing and locking the conformator against the platen.

19.-In a typewriting machine, the Cornbination with a cylindrical platen, of a card conformator normally inert, and independent means for at will causing said conformator to press forcibly against the platen 01' against the card thereon.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this (3th day 01": February, A. D. 1909.

JOHN PUnnY.

Witnesses M. F. HANNWEBER, J. B. DEEVES. 

